13242438 has 48 divisors (see below), whose sum is σ = 31988736. Its totient is φ = 3924720.

The previous prime is 13242407. The next prime is 13242443. The reversal of 13242438 is 83424231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8595 + ... + 10017.

It is an arithmetic number, because the mean of its divisors is an integer number (666432).

Almost surely, 2^13242438 is an apocalyptic number.

13242438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13242438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15994368).

13242438 is an abundant number, since it is smaller than the sum of its proper divisors (18746298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13242438 is a wasteful number, since it uses less digits than its factorization.

13242438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489 (or 1486 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 13242438 is about 3639.0160758095. The cubic root of 13242438 is about 236.5861495150.

Adding to 13242438 its reverse (83424231), we get a palindrome (96666669).

The spelling of 13242438 in words is "thirteen million, two hundred forty-two thousand, four hundred thirty-eight".